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Also forgot to mention earlier, I think that you will need to consider clearing 
the contents of your completions list during failover. When Keith and I made 
the changes we did, we had to update the patch to ensure that it didnt try 
completing messages after failover that had been received from the old broker 
and so would now be considered to have invalid command IDs based on the 
tracking the Session does.

- Robbie


On 2011-11-16 18:31:12, rajith attapattu wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/2853/
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> 
> (Updated 2011-11-16 18:31:12)
> 
> 
> Review request for qpid, Gordon Sim, Robbie Gemmell, Weston Price, Keith 
> Wall, and Oleksandr Rudyy.
> 
> 
> Summary
> -------
> 
> This patch is for both QPID-3612 & QPID-3613. Please note QPID-3602 is the 
> main JIRA for credit related issues.
> 
> Message completions are now handled independent of the Message acks.
> 
> 1. The consumer now keeps track of credits on a per subscription basis using 
> the RangeSet "completions" and sends completions,
>    if the unCompletedCount >= _capacity/2
>    For capacity = 0 or capacity = 1, we use the flag 
> "sendCompleteForEveryMsg" to send a completion for each message.
> 
> 2. Cleanedup the acking process in AMQSession_0_10.java to make acking 
> independent of completions.
>    2.1 For AUTO_ACK we send an ack after every message.
>    2.1 For DUPS_OK we ack if,
>           maxAckDelay <= 0 OR
>           unackedCount >= ackBatchingThreshold, where ackBatchingThreshold == 
> prefetch/2
> 
> 
> This addresses bug QPID-3602.
>     https://issues.apache.org/jira/browse/QPID-3602
> 
> 
> Diffs
> -----
> 
>   
> http://svn.apache.org/repos/asf/qpid/trunk/qpid/java/client/src/main/java/org/apache/qpid/client/AMQSession_0_10.java
>  1202779 
>   
> http://svn.apache.org/repos/asf/qpid/trunk/qpid/java/client/src/main/java/org/apache/qpid/client/BasicMessageConsumer_0_10.java
>  1202779 
>   
> http://svn.apache.org/repos/asf/qpid/trunk/qpid/java/systests/src/main/java/org/apache/qpid/client/prefetch/PrefetchBehaviourTest.java
>  1202779 
> 
> Diff: https://reviews.apache.org/r/2853/diff
> 
> 
> Testing
> -------
> 
> Added two basic test cases (transacted and client-ack modes) to ensure 
> completions are sent in time to ensure credits don't dry up.
> 
> 
> Thanks,
> 
> rajith
> 
>

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